OS X: Add "UK" style keyboard layout.
OS X: Add "UK" style keyboard layout.

Rationale: I vastly prefer having the # and ~ symbols on the [\|] key, \ and
| on the [~`] key, " on the [2@] key, @ on the ['"] key and ` on the [§±] key.
I have over twenty years of muscle memory that says this is right, and I shall
bend my MacBook Pro to my will.

norm/homedir